Am 05.05.2012 03:05, schrieb Bill Cole:
> Systems can live a long time without drive replacements. 

but only if you do not permanently spin them up and down
power managment is the dead of a drive

i have here disks with > 35.000 uptime
you can be sure with "power-managment" they
would still be dead

try it out: spin down a drive running some years
and you have a real good change that the next
spin up is the final one

> Spinning rust with power management firmware is not going
> to be rare in running systems until at least 5 years 

and should be the first to get disabled in the real world

the power you save in spin down a disk is meaningless
in any way, the power for produce a new drive because yours
died by permanently spin up/down is much higher and the cost
of the new drive also compared with let the drive run



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